Messages in this thread | | | From | Rajanikanth H V <> | Date | Thu, 12 Jan 2012 10:49:38 +0100 | Subject | RE: tty/serial: Need clarification on Support for 4+M Baudrate |
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Alan,
Thanks for your response, suggested modification helped to get 4.8M baud but not 4.05M as this is being approximated to 4.0M baud which happens in tty_termios_encode_baud_rate(...).
I have precise and weird requirement to get 4.05M baud as uart baud clock divisor value changes between 4.0M and 4.05M Baud.
Any suggestion?
Thanks, Rajanikanth
-----Original Message----- From: Alan Cox [mailto:alan@lxorguk.ukuu.org.uk] Sent: Wednesday, January 11, 2012 6:00 PM To: Rajanikanth H V Cc: linux-serial@vger.kernel.org; linux-kernel@vger.kernel.org; gregkh@sude.de; linux-arm-kernel@lists.infradead.org Subject: Re: tty/serial: Need clarification on Support for 4+M Baudrate
On Wed, 11 Jan 2012 17:49:01 +0530 > I have a requirement to interface UART with an external microcontroller > using baud rate above 4Mbps, hence following is my approach to apply > the changes. Can any one review/provide me appropriate approach.
See TCGETS2/TCSETS2 and the BOTHER flag.
The kernel supports aetting arbitary baud rates already.
Alan
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